Design of a mid-IR optical fiber amplifier based on a Pr3+:InF3 glass

Antonella Maria Loconsole; Vito Vincenzo Francione; Andrea Annunziato; Francesco Anelli; Md. Imran Khan; Stefano Taccheo; Francesco Prudenzano

doi:10.1117/12.3017504

20 June 2024 Design of a mid-IR optical fiber amplifier based on a Pr³⁺:InF₃ glass

Antonella Maria Loconsole, Vito Vincenzo Francione, Andrea Annunziato, Francesco Anelli, Md. Imran Khan, Stefano Taccheo, Francesco Prudenzano

Author Affiliations +

Proceedings Volume 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV; 130030J (2024) https://doi.org/10.1117/12.3017504
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

An optical fiber amplifier based on a fluoroindate fiber doped with praseodymium (Pr³⁺:InF₃) has been designed. The chosen fiber has a double-cladding and a 2-D shape. The electromagnetic behavior of the fiber has been simulated via a Finite Element Method (FEM) software, and the design of the fiber amplifier has been performed via a computer code, solving the rate-equations and power propagation equations. The gain G and the Amplified Spontaneous Emission (ASE) noise have been investigated as a function of different input parameters as the input signal power P_s₀, the fiber length L_fiber , and the signal wavelength λ_s. The simulated fiber amplifier exhibits a bandwidth B_G close to B_G = 100 nm around the central signal wavelength λ_g = 4 μm, and a gain G close to G = 30.7 dB, when an input signal power P_S = 10 μW and a pump power P_P = 75 mW are considered. This pump value seems particularly low and further investigation will be performed to better understand this unexpected promising value.

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Antonella Maria Loconsole, Vito Vincenzo Francione, Andrea Annunziato, Francesco Anelli, Md. Imran Khan, Stefano Taccheo, and Francesco Prudenzano "Design of a mid-IR optical fiber amplifier based on a Pr³⁺:InF₃ glass", Proc. SPIE 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV, 130030J (20 June 2024); https://doi.org/10.1117/12.3017504

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